Justin Bieber Covers Justin Timberlake's 'Cry Me a River' (Video)

One week after news broke of his split from longtime girlfriend Selena Gomez, the Biebs belted out the signature breakup song at a Boston tour stop.

Kyleen James

Days after if was confirmed that he and Selena Gomez had broken up, Justin Bieber took to the stage at Boston's TD Garden arena on Saturday and performed one of the greatest kiss-off songs in a generation, Justin Timberlake's "Cry Me a River."

Gomez and Bieber broke up a week ago, according to E! News. "Because of their crazy schedules, it was getting harder and harder to maintain a relationship," a source revealed. Another insider confirmed the breakup with the AP.

As Beliebers know, the 18-year-old star has a long relationship with the song. A version uploaded to YouTube in 2008 has been watched more than 20 million times and Bieber mashed the track with Kanye West's "Heartless" for Billboard a year later.